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 Wysłany: Nie 5:29, 16 Sty 2011 Temat postu: ugg italia Differentiation of tobacco aphid popula |
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Differentiation of tobacco aphid populations RAPD analysis
. Geogr ~ hieeloginofanhatroducedinsectpest,[link widoczny dla zalogowanych], Lf Ⅱ pen handsome bonariensis (Ku ~ he1), determinedbyRAPDla-sisHeredity, 1994. 72:412 ~ 41912AyalaFJ. Geneticdifferentiationdunksthespeciatic ~ pn ~ ess. EvolBid. 1975. 8:1 ~ 78RAPD-PCRANALYSIS0lFP0lPULATIoNDIFFERENTIATIoN0FGREENPEACHAPHIDINCHINAYangXiaowen ugly 1gXiaoxi (DepartmentofPlmntP ∞ ten_ bleed at the nose. Nanjin ~ Ag ~ ieuharalUnlv ~ t ~, Nanjing210095) Chert W aI1gWangYiI1g'I to n watch for Z ∞ Iogy. a blood brick argue that both d Sd song. Woo,[link widoczny dla zalogowanych], B is still iT Cameroon 1o0080) AbstractRAPD-FCRwasusedtodetectthepopulationdifferentiation. fgreenpeachaphid. Mwus ~ * rdcae (& Il ∞ r) OntobaccofromdifferentregionsinChina. andtheresuhsshowedthattheuse. fdiffer-entprimersintheRAPDmethodpermitsdetectionofdifferentlevelsofDNApolymorphimaintheaphid'spopulation. Nei'sgeneticdistanee (D) showsthatthedifferentiationoftheaphidfromtobaccoisonlyatpopulationlevelinsteadofsubspeciesorspeciesleve1. Threeprimersscreenedfromninete ~ ~ lvgei-~ usedforclusteranalysiasedonsimilarityindex (si) andNei'sgeneticdistance (D). AlthoughthereexistsomedifferenceetweenthedusterresultsofandD. theybo twenty 1canshowtheDNAdifferencesofgeographicpopulationsandcolorformsoftheaphid. AtDNAleve1. comparedwiththeholocydicaphids (fromnorth.emChina), theaphidsmixedwithholocydicandanholocyclic1irecycles (fromcentralChina) srelliol '~ similartotheanholoeyclicaphids (fromsouthernChina),[link widoczny dla zalogowanych], butthereisI ∞ obviousdifferenceamol1gtheaphidsfromcentralChina. neresultsalsoshowthat, comparedwi twenty 1yellowish-greenforms, theredformsaleITtoresimdartothebrownones. ftheaphid. KeywordsMyzus plus r ∞ (sul). RAPD-PCR, similarityhadex,[link widoczny dla zalogowanych], geneticdis ~ nDe. populationdif-ferentiation
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